Mobile incinerator



June 24, 1952 BRANDT ET AL 2,601,657

MOBILE INCINERATOR Filed May 23, 1950 I 4 Sheets-Sheet 1 ENTORS,

J'omv 8. 80mm Hum J. Kan Jay .Z 804':

8 ,v MAW y Y :9 roerrsx June 24, 1952 J. B. BRANDT El AL 2,601,657

MOBILE INCINERATOR 4 Sheets-Sheet 2 Filed May 25, 1950 rw a 5 5% M mmk w m J 5 W V i N WW 1H0 W 5 i. {.T u U Q June 24, 1952 Fil J. B. BRANDT ET AL 2,601,657

MOBILE INCINERATOR 4 Sheets-Sheet 3 ed May 25, 1950 74. 3. INVENTOR. .7311 5 Ban/v07 Ameny ke-LLY J'omv J. Ewe/v5 June 24, 1952 J. B. BRANDT ET AL 2,601,657

MOBILE INCINERATOR Filed May 23, 1950 4 Sheets-Sheet 1 INVENTOR. Jbhw' a. film/var: ##my .7." ki -X famv .7? But/v5 Patented June 24, 1952 OFFICE MOBILE INCINERATOR John B. Brandt, Harry J. Kelly, and John J.

Burns, Chicago, Ill.

Application May 23, 1950, Serial No. 163,678

11 Claims. (Cl. 110-8) Our invention relates to mobile incinerators.

Our invention relates more particularly to an incinerator of the type which may be transported from house to house, as in towns, villages and cities, to collect, pulverize, dehydrate and burn garbage or similar combustible refuse, reducing it to ashes and storing the ashes on the conveyance for the incinerator until it is necessary to dump the ashes.

The principal object of the present invention is to provide a mobile incinerator for collecting and burning garbage or similar combustible refuse, said incinerator, ash pit and associated parts being of sufiicient size 50 that a considerable amount of garbage or other combustible material may be disposed of per hour, the principal use of the incinerator being in the pick up from house to house of garbage, refuse, etc., as now required in most villages, towns and cities either by municipally owned equipment or by private scavengers.

A further object of the invention is to provide a mobile incinerator in an assembly which may include all of the usual equipment presently found in commercial garbage collection trucks, the incinerator being assembled therewith so that in the truck ashes and other non-combustibles can be collected and stored, while paper, trash, garbage and other combustibles may be burned as the truck travels on its collection route.

A further object of the invention is to provide an improved mobile incinerator for burning papers, trash and garbage which includes crusher or pulverizing rolls, a heating or dehydrating chamber and a furnace, all designed and arranged in connection with the usual garbage disposal trucks at present on the market.

A further object of the invention is to provide apparatus of the type described capable of continuous operation so that the garbage disposal truck may be driven on a regular pick-up route to collect ashes, garbage and trash, the incinerator and associated equipment serving to dispose of all garbage and combustible trash as it is collected, so that the disposal truck need only be driven to a dump and emptied when the ash receiving portion of the body is filled with'ashes.

For a more comprehensive understanding of the features of the invention, reference may be had to the accompanying drawings, upon which E Fig. 1 is a side elevational view of a mobile incinerator constructed in accordance with our invention;

Fig. 2 is a longitudinalsectional view thereof;

Fig. 3 is a vertical cross-sectional view through the furnace or combustion chamber and associated parts, and is taken generally on the line 3 -3 of Fig. 2;

Fig. 4 is a fragmentary sectional view taken through the conveyor mechanism generally on the lines 4-4 of Fig. 2; and

Fig. 5 is a'plan sectional view through the pulverizing rolls and associated parts taken generally on the line 5--5 of Fig. 2-.

In the embodiment of the invention which we have chosen to illustrate and describe in Fig. 1 we have shown the usual type of garbage and refuse collecting vehicle which may include the front and back sets of wheels l0 and I2, and a motor 14 for driving the same mounted below a cab l6 located at the forward end of the vehicle.

In the construction which we provide the vehicle will generally be divided into three parts, the forward portion l8 being stationary with the frame of the vehicle and adapted to contain the fuel reservoir 20, incinerator or furnace 22, oil burner 24, and associated parts. The second part may comprise the dump truck body 26 which is provided with the usual mechanism for pivotally raising the forward end of the same about a pair of pivots '83 adjacent the back end of the truck frame so that the contents thereof may be dumped out of the open back end 21 when desired. This mechanism, as is well known in the art, includes a telescoping hydraulic piston as-' sembly 81 mounted on a base 89 on the truck frame 85, the upper end being pivotally connected at 9| to the floor of the dump truck body. The dump truck body may have the top wall l9, forward wall 2|, and bottom wall 23, the front wall having a lower opening 3| for a purpose which will hereinafter be apparent.

The hollow tail gate portion 28 of the conveyance may be provided with a pair of wide wall openings =30 leading to the interior thereof so that garbage or other refuse in drums or large barrels may be raised up, the edge positioned on the top of the funnel member 32, and the garbage or refuse dumped through the openings 30. As is usual with hollow tail gates of this type. we mount the same upon pivots 29 adjacent the top rear end of the dump truck body 26 so that when the dump truck body is raised by the hydraulic piston assembly 81, the gate will swing away to permit the dumping of materials in the dump truck body.

Referring now more particularly to Fig. 2, the refuse which is dumped through the openings 30 in the side walls 34 of the tail gate portion is 7 end wall 46 of the same and a supporting wall 48,

so that material disposed upon the blades 44 will i be carried upwardly in the space provided.

The conveyor chains 42 are trained about a pair of idler sprockets 59 and 52 in :the lower part of the tail gate 28 over similar idler sprook ets 54 and 5G in the dump bodyportion-Zfiandover driven sprockets 58 which are keyed to the shaft 613 that may be driven in any suitablemanner from the motor [4.

The spaced wall 48' in the tail gate has its upper: end terminating adjacent a horizontally" disposed platform portion 62 which supports the conveyor blades 44 during their forward travel in the "upper end'of the dump body'Zfi, the blades carrying garbage and other refuse forward and permitting the same to be dropped either into the chamber 64in the dumpbodyZfi or over an angularly disposed gate 6'6- which directs the:

material to a pair of spiral members 68*of' the typeusedin stoker furnaces to move material to be burned forward upon the grate 10 in the furnace orcombustion chamber 12;

The-combustion chamber 12 may be generally rectangular; as shown in Figs. 2 and 3; having thesfire' brick walls M and an air space 16 be-- tween the same and a similar firewall 18 upon the outside of the air space 16.

The airspace which is provided about the combustion chamber ofthe incinerator thus pre vents the outside'walls' of thetruck from be-- coming extremely hot, and in'a'ddition' provides a passageway about the combustion chamber *so that ithea'ir which is heated thereby may be forced-upwardly therefrom by=means of a fanmember-80 through a pair ofpassageways-on ducts 83-83 that are mounted-in the upper side walls of the dump body The -passageways or ductsi 83-83 are" providedwith a plurality of screen covered outlets 86:and 88': directed from the sides thereof into the-interior of'the' dump body chamberfi lv above the-platform .BZ for the purpose ofv heating or dehydrating the garbage or other material that' is' being conveyed forward'thereon by theiconvey'orsmember 40."

Inflthis manner andby the introduction of" the-heated air continuously into thegarbage and other material being moved forward-to-be burned; the'same is thoroughly dehydrated-duringdts passage'to the combustion chamber 'so thatiwhen' rit reaches the combustion chamber ibis-bound to burn easily and quickly;v thus greatly increasing the efiiciency of the-mobile incinerator andpermitting the garbage and-other combustible materials to be burned at' arate of speed so that theincinerator can be moved forward from houseto house to pick up the' garbage T and other combustible material andburn "the same without any time-consumingide lays-between stops.

The fuel for theoil burner'lflmay be stored in the oil tank 2c, the engine in being preferably of -the 'die'sel typeso-that fuel oil 'iofl the samet-itype may be 'consumed therein. For-' this'i purpose fuel oil conduits I5 extend from the tank to the engine, and conduit l1 extends from the tank to the oil burner 24, the same being of the forced draft jet type so that an extremely high temperature fire may be easily and quickly obtained.

An ash door H may be provided at the end of the ash pit 13 below the grate 1c in the com- 7 bustionchamberi'; as well as a clean-out door 15 to-permit entrance into the fire box of the furnace when desired.

In order to permit the disposal of ashes and other non-combustible material into the dump truck body 26, we provide the loading doors 8!! uuponthe'isidesthereof, it being understood that ashesatin cans, etc. which are not subject to burning; are loaded into the dump truck body without the use of the conveyor means provided in th'e tailgate.

We have provided the usual smoke stack'82 extending upwardly from the combustion chamber 12,=.-thestack having a cover 84- thereon and-a screen 86 therein to-prevent the hot ashes,. sparks and other particles from leaving the combustion chamber, thereby eliminating a possible fire: hazard im the :usee'of the mobile incinerator. When desired,- in: i order to eliminate obnoxious odors-from the burning of-garbage or similar refuse, a suitable odor destroying chemical may be-provided in connection with the same.

At the lower end of: the tail gate 28- in the housingp 28a inuwhich-the' crusher rolls are mounted, we-have provided a chamber 29 therebeneath-havingz a-slide= gate 30 --thereon; being a for thepurpose of collecting .fiuid refuse which develops-in the-crushe and which may. be dumped i in -thesewer at-convenient V times and locations.

The drive for the-I crusher rolls,'.-as best shown in Fig; 5, may:- include-ashaftBOextending back from the motor M, the shaft driving thecrusher roll shaft 92v by means of bevelled gears 94. the crusher-roll -38- :being driven from the crusher roll 36- by means- 0f face gears- 96- and 98--on one-aside of "the-same. Since one-of these roll-'- ers is driven clockwise and the other counterclookwise the material dumped upon the sameis -movedinwardly; crushed or pulverized between-the same and dropped '-in the' chamber 28a: Where it maybe picked "up by the conveyor 'blades 44 and carried forward to its desired destination. Non-combustible material may be dumped at this point if desired and carried -forward "bythe conveyor-chains and blades 44* and dumped: into the :chamber fl in the dump truck body portion 26; For. this purpose -the gate 66" is swung: to the left and: heldin"'-the dotted line position shown: Fig.1: 2 so u that the material carried forward; instead of abeing-dumped into the combustion chamber"ofi the furnace; will be dumped directly:*'into the: dump truckwcliamber 64:

From the above an-d foregoing. description it I can be" seen-by: those skilled-in :the art that we have provideda mobile incinerator bymean's of 1 which garbage and refuse "collection: in cities, towns and villages can bequickly and'effectivelyi accomplishedgcthe' incinerator 'beingsuch 'thatit burnsvu p zthe garbagei and combustible material as athe' dumpitruckdsmoved from h'ouseto =ho'use; Since even': i-n the northem climatesfiover of the refuse collected is :combustible for over 'sev'en months of the year it can thus be seen that'by; the use of one of the mobile lncineratorsr'which' we:'haveiprovided it: ispossible to: quickly, .efll

ciently and cheaply collect and dispose of garbage and other waste material.

We contemplate that changes and modifications may be made in the exact details shown and we do not intend to be limited in any particular; rather what we desire to secure and protect by Letters Patent of the United States is:

l. The combination with a garbage dump truck, a fuel tank on said truck, a combustion chamber on the forward end of said truck, of an oil burner operatively associated with said combustion chamber, an ash pit therebelow, a conduit from said fuel tank to said oil burner, said oil burner, combustion chamber and ash pit being insulated from the truck, a dump body separate from said burner and combustion chamber mounted on said truck and disposed rearwardly thereof, said dump body having a storage chamber therein, a hopper at the rear end of said dump body, a dehydrating chamber on said truck between the hopper and the combustion chamber, a conveyor in said dump body extending forward from the lower end of said hopper through said dehydrating chamber, and means operatively associated with said combustion chamber and said storage chamber for directing refuse carried by said conveyor either to said combustion chamber or to said storage chamber on said dump truck body, said dump truck body having a passageway therein for carrying heat from said combustion chamber to said dehydrating chamber to dehydrate refuse during its movement therein.

-2. In combination, a truck frame, a dump truck body mounted thereon, a hollow tail gate pivotally connected at the top of said body and closing the end of the same, said tail gate having an arcuate back wall and openings in the side walls of the same, a pair of spaced parallel crusher rolls mounted below said openings in the lower end of said tail gate, a wall parallel to and spaced from the arcuate back wall of said tail gate to form a passageway, a conveyor comprisin a pair of endless chains, spaced blade members connected therebetween, sprockets on both sides of said dump truck body, said chains trained about said sprockets, said sprockets mounted in the lower end of said tail gate below said crusher rolls, idler sprockets mounted adjacent the top of said dump truck body and drive sprockets mounted adjacent the front of said body, a platform below said spaced blade members adjacent the top of said dump truck body aligned with the wall parallel to the arcuate back wall of said tail gate to form a continuation of the passageway from said tail gate, said blade members connected between said chains and adapted to move material from below said crusher rolls and through the passageways above mentioned, a combustion chamber disposed at the forward end of said platform into which material moved by said blades may be dropped, ducts from the combustion chamber to the sides of said platform in heating relationship thereto, and a blower operatively associated with said ducts for directing hot air from said chamber through said ducts.

3. In combination, a truck frame, a dump truck body mounted thereon, a hollow tail gate pivotally connected at the top of said body and closing the end of the same, said tail gate having an arcuate back wall and openings in the side walls of the same, crusher rolls mounted in the lower end of said tail gate, a wall parallel to and spaced from the arcuate back wall of said tail gate to form a passageway, a conveyor comprising a pair of endless chains with spaced blade members connected therebetween, said chains trained about sprockets mounted at each side in the lower end of said tail gate below said crusher rolls, idler sprockets at each side adjacent the top of said dump truck body and drive sprockets at each side adjacent the front of said body, a platform below said spaced blade members adjacent the top of said dump truck body aligned with the wall parallel to the arcuate back wall of said tail gate to form a continuation of the passageway from said tail gate, a combustion chamber at the forward end of said platform, means forming a vertical passageway into which material moved by said blades may be dropped, ducts extending from the combustion chamber to the sides of said platform, a blower for directing hot air from said chamber through said ducts, said vertical passageway at the forward end of said truck frame being in communication with said combustion chamber.

4. In combination, a truck frame, a dump truck body mounted thereon, a hollow tail gate pivotally connected at the top of said body and closing the end of the same, said tail gate having an arcuate back wall and openings in the side walls of the same, a pair of spaced parallel crusher rolls mounted in the lower end of said tail gate, a wall parallel to and spaced from the arcuate back wall of said tail gate to form a passageway, a conveyor comprising a pair of endless chains having spaced blade members connected therebetween, said chains trained about sprockets mounted at each side in the lower end of said tail gate below said crusher rolls, idler sprockets at each side adjacent the top of said dump truck body and drive sprockets at each side adjacent the front of said body, a platform below said spaced blade members adjacent the top of said dump truck body aligned with the wall parallel to the arcuate back wall of said tail gate to form a continuation of the passageway from said tail gate, a combustion chamber at the forward end of said platform, means forming a vertical passageway into which material moved by said blade members may be dropped, ducts extending from the combustion chamber to the sides of said platform, a blower for directing hot air from said chamber through said ducts, said vertical passageway at the forward end of said truck frame being in communication with said combustion chamber, and a pivoted gate at the top of the same movable to open or close said vertical passageway.

5. In combination, a truck frame, a dump truck body mounted thereon, a hollow tail gate pivotally connected at the top of said body and closing the end of the same, said tail gate having an arcuate back wall and openings in the side walls of the same, a pair of spaced parallel crusher rolls mounted in the lower end of said tail gate, a wall parallel to and spaced from the arcuate back wall of said tail gate to form a passageway, a conveyor comprising a pair of endless chains having spaced blade members connected therebetween, said chains trained about sprockets mounted at each side in the lower end of said tail gate below said crusher rolls, idler sprockets at each side adjacent the top of said dump truck body and drive sprockets at each side adjacent the front of said body, a platform below said spaced blade. members adjacent the top of said dump truck body aligned with the wall parallel to the arcuate back wall of said tail gate to form ace-1,657-

a continuation of the passageway from said tail gate; a combustion chamberat. the forward end of said platform, ducts extendingfrom"the coin busti'on chamber to the=sides of-said platformj 'a' blower for directing-hot air from said chambeir" through said ducts, means defininga-vertical passageway at the forward-end 'of said 'platform in communication with said combustion chamberinto which material moved'by thesaidconveyor may be dropped, and a pivoted gate-atthe top of the same movable to open'orclose said 'verti cal passageway, said combustion chamber-being mounted on said truckbody ahead of saiddumptruck'body.

6. The combination with atruck frame'having a cab, an oil reservoir, acombustion chamber and an oil burner on the front of th'e'same, of a dump truck body pivotallymounted thereon, a pair of pivots adjacent the'rear top end of said comprising a pair of endless chains having spaced blade members connected therebetween; said chains trained about sprockets mounted at each side in the lower end of said tail gate below saidcrusher rolls, idler sprockets at each side'adjacent the top of said dump truck body and drive sprockets at each side adjacent the front of said body, a platform below said spaced blade members adjacent the top of said dump truck body defining a dehydrating chamber with the roof and side walls of said dump truck body,.said com-' bus'tion chamber being disposed at the forward end 01 said dehydrating chamber and adapted to receive material being carried forward throughsaid dehydratingchamber by said conveyor ducts extending from the combustion chamber to the sides of said dehydratmg chamben anda blower for directing hot air from said'combus'tion-cham-' her through said ducts to i said dehydrating chamber.

7. The combination with a truck frame-having.-

a cab, an oil'reservoir, acombustionchamber and an oil burner onthe front of the same, of

dump truck body pivotally mounted-thereon,--a-- pair of pivots adjacent the end-of said'dumptruck body, a hollow tail gate-mounted on said' pivots and adapted to close the rear -endof -said dump truck body, said tail gate having an-arcuate back wall and openings in the side walls of H the same, a pair of spaced parallel crusher rolls mounted in the low'er'end of said'tailgate a wall parallel to and spaced from the ar'c'ua'te' back wall of said tail gate to form a passageway,.a conveyor comprising a pair of endless chains; having spaced blade members" connected therebetween, said chains trained'abcult sprockets" mounted at each side in the lo'weren'd' of said tail gate below said crusher rolls,idl'ersprockets" at each side adjacent the top of said'dumptrilck body and drive sprockets at each side'adjace'nt the front of said body, a platform"'belowsaitl"' spaced blade members adjacent the top of said dump truck body defining adehydratingcham with the roof and side-wallsof said dumptruok body, duct-s extending fronrth'e' c'o'n'ibu'stlon chamber to the'sides' of saidplatforihWitli to said dehydrating chamber, a blower for directing hot air from said'combustion 'chan'i ber through said ducts to said aenyamangentm: 75'

8- ber,-ianda'gate-pivotallymounted above said'combustion chamber for optionally directingmaterial moved forward through'said dehydrating chamber: into said "dump truck body or into said combustion oham'b'er.

8. In-combinatioma truck frame, a dump truck bod ylmounted thereon; a pair-of pivots adjacent the "top and'back end of saiddump truck body,

ahollow-"tail-gate mounted on said pivots and adapted'to-close the'end of said dump truck body, said -tail gate having an arcuate back wall and openings in-the side walls of the same,'a pairof spaced parallel crusher rolls mounted in the-lower end'ofsaid-tail gate, a wall parallel to and spaced- ;;fro'mthe arcuate back wall of said tail gate to forma passageway, a conveyor comprising a pair of parallel: spaced endless chains with spaced blademembers connected therebetween, said chains trainedabout sprockets mounted at each zside in the lower end of said-tail gate below said" crusher 'r'olla idler sprockets at each'side adjacent the top 0f said dump truck body and drive sprockets at each sideadjacent the front of said body; a platform belowsaidspaced blade members adjacent the top of saiddump truck body over which said blade" members slide, said platform and the top: of said dump truck body forming a continuation-of the pas'sa'geway in said tail gate, and a combustion chamber positioned below thefortvard end of said platform 1 whereby material carried fonward on said platform by'said blade members willdropbygravity into said c'ombustion chamber.

9-; In combination, atr'uck frame,-a-dump truck bodymounte'dthereon, a pair of pivots adjacent thetop-and rear ofsaid dump truck body, a hollow tail gate mounted 'onsaid pivotsand adapted to close-the-end of said dump truokbody, said tail gate having an arcuate back wall and openings in"the"side'walls of thesame; a pair of spaced parallel'cr'usher rollsmounted in the lower end of said tail gate, a wall parallel'to' and spaced from the'ar'cuate back'wal'l of said tail gate to form a passageway, a 'conveyor'comprising a pair of parallel spaced endless-chains with spaced blade members c'onnected therebetween, said chains trained "about sprockets mounted at each side' in the lowerend of said tailgate below said crusher rolls, idler'spiockets at'eachside" adjacent the top ,-.of said dump .truck body and drive sprockets" at each side adjacent the front of said body, a platform below saicfspa'dced blade members adjacent the t'o'p of said dumptruck body over which said blade members slide saidplatform and the top of' sai d dump truck body forming a continuation of the-passageway in saidtail-gate, and a combustion chamber at-the forward end'of said platform; saiddump truck frame havinga tiltablegate below the forward end of said platform: for

optionally guidingmaterial carried forward into said-dump truck 'body' or into said combustion chamber; 7

10; The combination with anautomotive vehicle-having a fuel -t ank -of a combustion chamber inthe forward endof the vehicle} a burner therefor connected to said fuel tank; a dump truck body mounted-on said vehicleLa hollow tail gate pivotally" connected to'the top at the back end of said dump truck body, a crusher rolls mountedin the lo'wer'end of sai'cl hollowtail gate for- 'pulverizi-n'g' materials dumped therein, and

conveyor'meauspassing beneath said oilisheffoll's for moving Said 'piilVriZd' materials, said" (301iveyor' meansjextendingforwardly from saidliollow' "tail 'gate'aujacent th'e'to'p of'said' dump truc'k'bddy' to said combustion chamber, said conveyor means including a pair of spaced endless chains, blades connected therebetween and a wall adjacent the top of said dump truck body over which said blades move said material to said combustion chamber.

11. The combination with an automotive vehicle having a fuel tank, of a combustion chamber in the forward end of the vehicle, a burner therefor connected to said fuel tank, a dump truck body mounted on said vehicle, a hollow tail gate pivotally connected to the top at the back end of said dump truck body, crusher rolls mounted in the lower end of said tail gate for pulverizing materials dumped therein, and conveyor means passing beneath said crusher rolls for moving said pulverizing materials, said conveyor means ex tending forwardly from said hollow tail gate adjacent the top of said dump truck body to said combustion chamber, said conveyor means including a pair of spaced endless chains, blades connected therebetween and a wall parallel to and adjacent the top of said dump truck body over which said blades move said material to said combustion chamber, and heating means associated with said conveyor means for drying said material during movement.

JOHN B. BRANDT.

HARRY J. KELLY.

JOHN- J. BURNS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

